Gabriele Cosmo
120 lines
4.7 KiB
C++
120 lines
4.7 KiB
C++
//
|
|
// ********************************************************************
|
|
// * License and Disclaimer *
|
|
// * *
|
|
// * The Geant4 software is copyright of the Copyright Holders of *
|
|
// * the Geant4 Collaboration. It is provided under the terms and *
|
|
// * conditions of the Geant4 Software License, included in the file *
|
|
// * LICENSE and available at http://cern.ch/geant4/license . These *
|
|
// * include a list of copyright holders. *
|
|
// * *
|
|
// * Neither the authors of this software system, nor their employing *
|
|
// * institutes,nor the agencies providing financial support for this *
|
|
// * work make any representation or warranty, express or implied, *
|
|
// * regarding this software system or assume any liability for its *
|
|
// * use. Please see the license in the file LICENSE and URL above *
|
|
// * for the full disclaimer and the limitation of liability. *
|
|
// * *
|
|
// * This code implementation is the result of the scientific and *
|
|
// * technical work of the GEANT4 collaboration. *
|
|
// * By using, copying, modifying or distributing the software (or *
|
|
// * any work based on the software) you agree to acknowledge its *
|
|
// * use in resulting scientific publications, and indicate your *
|
|
// * acceptance of all terms of the Geant4 Software license. *
|
|
// ********************************************************************
|
|
//
|
|
//
|
|
//
|
|
// P. Arce, June-2014 Conversion neutron_hp to particle_hp
|
|
//
|
|
#ifndef G4ParticleHPArbitaryTab_h
|
|
#define G4ParticleHPArbitaryTab_h 1
|
|
|
|
#include "G4InterpolationManager.hh"
|
|
#include "G4ParticleHPVector.hh"
|
|
#include "G4VParticleHPEDis.hh"
|
|
#include "G4ios.hh"
|
|
#include "Randomize.hh"
|
|
#include "globals.hh"
|
|
|
|
#include <CLHEP/Units/SystemOfUnits.h>
|
|
|
|
#include <fstream>
|
|
|
|
// we will need a List of these .... one per term.
|
|
|
|
class G4ParticleHPArbitaryTab : public G4VParticleHPEDis
|
|
{
|
|
public:
|
|
G4ParticleHPArbitaryTab()
|
|
{
|
|
theDistFunc = nullptr;
|
|
nDistFunc = 0;
|
|
}
|
|
~G4ParticleHPArbitaryTab() override { delete[] theDistFunc; }
|
|
|
|
inline void Init(std::istream& theData) override
|
|
{
|
|
std::size_t i;
|
|
theFractionalProb.Init(theData, CLHEP::eV);
|
|
theData >> nDistFunc; // = number of incoming n energy points
|
|
const std::size_t dsize = nDistFunc > 0 ? nDistFunc : 1;
|
|
theDistFunc = new G4ParticleHPVector[dsize];
|
|
theManager.Init(theData);
|
|
G4double currentEnergy;
|
|
for (i = 0; i < dsize; ++i) {
|
|
theData >> currentEnergy;
|
|
theDistFunc[i].SetLabel(currentEnergy * CLHEP::eV);
|
|
theDistFunc[i].Init(theData, CLHEP::eV);
|
|
theDistFunc[i].IntegrateAndNormalise();
|
|
//************************************************************************
|
|
// EMendoza:
|
|
// ThinOut() assumes that the data is linear-linear, what is false:
|
|
// theDistFunc[i].ThinOut(0.02); // @@@ optimization to be finished.
|
|
//************************************************************************
|
|
}
|
|
|
|
//************************************************************************
|
|
// EMendoza:
|
|
// Here we calculate the thresholds for the 2D sampling:
|
|
for (i = 0; i < dsize; ++i) {
|
|
G4int np = theDistFunc[i].GetVectorLength();
|
|
theLowThreshold[i] = theDistFunc[i].GetEnergy(0);
|
|
theHighThreshold[i] = theDistFunc[i].GetEnergy(np - 1);
|
|
for (G4int j = 0; j < np - 1; ++j) {
|
|
if (theDistFunc[i].GetXsec(j + 1) > 1.e-20) {
|
|
theLowThreshold[i] = theDistFunc[i].GetEnergy(j);
|
|
break;
|
|
}
|
|
}
|
|
for (G4int j = 1; j < np; ++j) {
|
|
if (theDistFunc[i].GetXsec(j - 1) > 1.e-20) {
|
|
theHighThreshold[i] = theDistFunc[i].GetEnergy(j);
|
|
}
|
|
}
|
|
}
|
|
//************************************************************************
|
|
}
|
|
|
|
inline G4double GetFractionalProbability(G4double anEnergy) override
|
|
{
|
|
return theFractionalProb.GetY(anEnergy);
|
|
}
|
|
|
|
G4double Sample(G4double anEnergy) override;
|
|
|
|
private:
|
|
G4ParticleHPVector theFractionalProb;
|
|
G4int nDistFunc;
|
|
G4InterpolationManager theManager; // knows the interpolation between stores
|
|
G4ParticleHPVector* theDistFunc; // one per incoming energy
|
|
G4ParticleHPVector theBuffer;
|
|
//************************************************************************
|
|
// EMendoza:
|
|
G4double theLowThreshold[1000];
|
|
G4double theHighThreshold[1000];
|
|
//************************************************************************
|
|
};
|
|
|
|
#endif
|